Non-skid device.



J. ACHBERGER.

NON-SKID DEVICE,

APPLICATION FlLED APR.22, 191s.

. Patented Jan. 7, 1919.

W FIG.

trauma;

I o ilBe. it known that LJoznr Aomnnunm, a

"subject of the King' of Hungary,

iron-snip invionQ 3, i

t i declared his intention to become a citizen of the United States of America,) residing at Middletowmin the county of Butler "and State of Ohio, haveinven'ted certain new and useful Improvements in Non-Skid Def provide ajdetachable non-skid link forpneu matic tires; having a hinged arrangement for vices, of which the following is a 'speciiicae tion.

" The pnmaryobiect inventioiiis the provision of a non-.skid device readily adapt, the tread portion; of a. vehicle wheel, for affording greater. traction properties when-traveling upon the y edges of the plates 12 during. the operation of the device. 1

ed for "ttachment upon roadbed. o

i n further object/i the invention. is to' compensatingior' the flexing of the pneu I mat c tire while transverse bracing portions vehicle v.is travelin'gf thereover."-

Z lnjthedrawings forming a part of this application a" d in which like reference char acters refer .outth'e several views, lFi ure 1 is an elevational view of thedeshowing of; a portion of a wheel upon which lines,

lE ig. 2 is'a side .elevation-thereof, V 3 is a plan viewoffthe same and fieferring more in detail to'the drawing my device includes four sections "10, 'each.

section consisting ofan arcuate plate, hinges ls pec ifl cation o1 Lettei-s Patent."

' i ion .of the fell 17 to corresponding parts through vice mits'operative position with a sectional 30 the-devlce is mounted illustrated by dotted 4 isa transverse sectional view taken I through the device upon line IV-IV of 11 being provided for connecting the four plates together in flexible link formation while an attaching'hook 12 is positioned at each of the four corners of'the device. a

The hinged plates are readily fitted means. of a chain 14 having its links 15 securedto'the hooks 12 carried by one end plate 10 of the device and with the free ends of the chaindetachably connected by snap fasteners 16 to the hooks 12 carried by the opposite end plate 10 of the device. It will be understood that the chain 14: is positioned against the inner face of the adjacent p01- ginally secured. spaced apart upon each the longitudinal 'erably otthe l' k penetrate the:.roadbed when thefv members 21 notonly brace the outer edge 1; portions of also provide outwardlyprojectingsuhstan- -members In-this manner greatstren r and rigidity carry the calk members 21 while the teeth 1 P r y TEDo FIQE;

a r y Patented dant'hlilmi I "Q-ut 1ie t1onimeeAimee;ie s. seriaiuataonen Y of the wheel upon which i I the rim 18 is mounted with the tire 13 carr1ed thereby. By releasing the ends of the chain 14; from thelfasteners 16; the deviceis readily detached from the tire.13 while will be apparent that the spaced portionsv of the chain 14 which'engage the inner face of the telly 17 may sides ofone of the-spokes *wheel.

extend upon opposite 19 of the vehicle j A lining2O of soft material such as felt is provided for the sections -10for directly engaging thetire L13 'afl'ording betterfrictional contact therewith as wellas protect ing the rubber tire 13 from injury by the -'Curved calk memhers or plates21 aremari tioned' ones of 'said' plates 10. The call:

the intermediate plates 10 but tiallytriangular'shaped teeth 22, which are integrally carried by the inner edges of the gth is given to the sections 10 which 22 are arranged transversely of the tread 'portionof the tire '13 when my device is operatively positioned upon a wheel. The L y the rows of teeth 22 and the sections are permitted to move rela hinges 11 lie between tively upon the hinges'11 so that the inner small diameter if desired while the outward swinging movement of the sections 10 is only of said teeth 22.

The complete operation oi the device will readily mounted upon thetire 13 in the manner set forth and edgesoif the plates 1O, pref-; v -.upon only the two-centrally posiof thedevice may fit a tire of y limited by contacting with the terminal ones detachably secured thereon by the chains 14. v -Duringthe traveling of 'the wheel upon the roadbed, the teeth 22 which are arranged in parallel rows transversely of the tread of the wheel will penetrate the roadbed permitting the tire to obtain abetter gni'p upon the road while the hinges 11 permit the device to slightly fiex' with the relative move ment between the sections'10 so that the device may'slightly conditions of the roadbed' over which the 110 conform to the varying cially when traveling through sand and soft roads, so that the device will prevent side wheel is traveling;- The calkv members 22- form positioning meansfor thevhin es 11 of the two, intermediate sections of t e device and marginally strengthen such sections as well as provide the road-engaging teeth 22. It will be seen that the calk members 22 and the hinges 11 arrange a rectangular inclosure in the outer face of each of the two intermediate sections 10 which affords additional traction properties, espeslipping and skidding as well as assisting in the forward movement 05 the wheel.

What I claim as'new is 1. A non-skid device comprising a plurality of arcuate plates, spaced pairs of alined angular calk members transversely secured to said plates adjacent their outer edges with rows of road-engaging.- teeth spaced inwardly of said edges, and hinges 'eonnectedto the adj acently positioned portions ofsaidplates between the said teeth forming rectangular depressions in the outer traction surface of the device.

2. A non-skid devicecomprising four arcuate plates of substantially the same dimensions, hinges secured to said plates inwardly of their edges connected the plates inwardly whereby the device is adapted for snugly fitting upon tires of difierent diameters, at?

taching means'carried by the outer corners of the terminal ones of said plates, and calk members angular in cross section having acuate plate portions flatly secured to the marginal portions of the two intermediately positioned plates of the device adjacent the end and outwardly of said hinges, the said c'alk'members having outwardly projecting teeth at their inner portions adapted for ar rangement transversely of a vehicle tire adjacent the ends and outwardly of said hinges, thesaid calk members having outwardly projecting teeth at their inner portions adapted for arrangement transversely of a vehicle tire when the device is operatively positioned thereon, the said hinges and calk members forming rectangular receiving means upon the tread portion of the device adapted for gripping the roadbed when operatively engaged therewith.

In testimony whereof I afiix my signature.

J OZEF ACHBERGER. 

